  <!--测试页面 -->
  <template>
      <div>
        // 你的代码
        ...
        // 使用树形穿梭框组件
        <tree-transfer :from_data='fromData' :to_data='toData' :defaultProps="{label:'label'}" @add-btn='add' @remove-btn='remove' :mode='mode' height='540px' filter openAll>
      </tree-transfer>
      </div>
    </template>

    <script>
      import treeTransfer from 'el-tree-transfer' // 引入

      export default {
        data(){
          return {
            mode: "transfer", // transfer addressList
            fromData:[
              {
                id: "1",
                pid: 0,
                label: "一级 1",
                children: [
                  {
                    id: "1-1",
                    pid: "1",
                    label: "二级 1-1",
                    disabled: true,
                    children: []
                  },
                  {
                    id: "1-2",
                    pid: "1",
                    label: "二级 1-2",
                    children: [
                      {
                        id: "1-2-1",
                        pid: "1-2",
                        children: [],
                        label: "二级 1-2-1"
                      },
                      {
                        id: "1-2-2",
                        pid: "1-2",
                        children: [],
                        label: "二级 1-2-2"
                      }
                    ]
                  }
                ]
              },
            ],
            toData:[]
          }
        },
        methods:{
          // 切换模式 现有树形穿梭框模式transfer 和通讯录模式addressList
          changeMode() {
            if (this.mode == "transfer") {
              this.mode = "addressList";
            } else {
              this.mode = "transfer";
            }
          },
          // 监听穿梭框组件添加
          add(fromData,toData,obj){
            // 树形穿梭框模式transfer时，返回参数为左侧树移动后数据、右侧树移动后数据、移动的{keys,nodes,halfKeys,halfNodes}对象
            // 通讯录模式addressList时，返回参数为右侧收件人列表、右侧抄送人列表、右侧密送人列表
            console.log("fromData:", fromData);
            console.log("toData:", toData);
            console.log("obj:", obj);
          },
          // 监听穿梭框组件移除
          remove(fromData,toData,obj){
            // 树形穿梭框模式transfer时，返回参数为左侧树移动后数据、右侧树移动后数据、移动的{keys,nodes,halfKeys,halfNodes}对象
            // 通讯录模式addressList时，返回参数为右侧收件人列表、右侧抄送人列表、右侧密送人列表
            console.log("fromData:", fromData);
            console.log("toData:", toData);
            console.log("obj:", obj);
          }
        },
        components:{ treeTransfer } // 注册
      }
    </script>

    <style>

    </style>
